Process of making fuel bricks



Pete ted lil ec. 21, i926.

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PROCEQS MAKING FUEL BREUKES.

No Drawing. Application filed May 20, 3.925, Serial No. 31,5 99, and in Germany May 28, 1924.

This invention has reference to a method of manufacturing a fuel from coal, coke and the like in the form of bricks or briquettes, and it is particularly intended to provide means for producing bricks of this kind in the cold way from small, waste, breeze or the like of coal, coke and the like and of mix turcs thereof. In accordance with the process about to be described, bricks are obtained in a far more simple and expeditious and less expensive manner than it was possible to produce by the briquetting methods now in use, inasmuch as not only the heating of the products is dispensed with, but there is the further advantage that the addition of pitch and other binding agents now in use and which leave a residue on combustion, becomes wholly or at least partially unnecessary. The new process, according to this invention, is particularly distinguished by the fact that the bituminous matter contained in the fuel is distributed between and over the substances to be converted into bricks, by means of liquid dissolving agents or the like, particularly benzole or equivalent substances, by which means a very rapid adhesion and combination of the particles in the cold is obtained under pressure.

The mixture of fractions and particles of fuel is treated shortly before the pressing operation with a certain quantity of benzole, toluol, carbon-bisulphide and the like, which agents will be recovered wholly or in part in the pressing operation or subsequent thereto. This addition of benzole or the like dissolves the bituminous matter in the fuel and distributes the same over and between the parts of the combustible material to be converted into bricks, the said material being thoroughly permeated thereby. The particles of coke and coal are therefore impregnated. and enveloped by the bitumen which has been liquefied by the solvent and by this means the adhesive properties of the bitumen are enhanced. The adhesive properties are further increased by the fact that the bitumen by the action of the benzole or the like is converted into a condition in which it is particularly chemically and physically active.

By operating in this manner briquettes or bricks containing a considerable percentage of coke may be obtained. The smalls and dust of coke produced in gas works may thereby be rendered available, and inasmuch as the bricks produced by this process do not produce a sooting flame, they may be used in gas producers. The addition of benzole or the like amounts to one percent or more.

In the case of the employment of hard coal 0 substances, having been liquefied by the use of the solvents, are more uniformly distributed between the particles of fuel and more intensely permeate the same and will be immediately solidified thereafter.

It should be understood, of course, that the principle of the invention herein set forth in its broad aspects admits of a variety of embodiments and modifications in accordance with the conditions of application of the invention and within the scope and.

spirit of the claims as hereunto appended.

l. The process of producing fuel bricks in the cold way, which consists in treating coal-like fuel containing bitumen with a 0 solvent for the bitumen, and then compressing the mixture in the absence of heat into bricks.

2. The process of producing fuel bricks in the cold way, which consists in treating coallike fuel containing bitumen with a solvent for the bitumen, compressing the mixture in the absence of heat into bricks, and recovering the solvent.

3. The process of manufacturing fuel bricks in the cold way, which consists in treating a mixture of a bituminous fuel and a fuel devoid or containing but a small. amount of bituminous matter with a solvent for the bitumen, and pressing the mixture into bricks in the absence of heat.

l. The process of manufacturing fuel bricks in the cold way, which consists in treating a mixture of a bituminous fuel and a fuel devoid of or containing but a small amount of bituminous matter, with a solvent for the bitumen, pressing the mixture into bricks in the absence of heat, and recovering the solvent.

5. The process of manufacturing fuel 1 bricks in the cold way, which consists in treating a mixture of coal-like fuel contain ing bitumen with a small amount of pitch and with a solvent for bitumen, and pressing the mixture into bricks.

6. The process of manufacturing fuel bricks in the cold way which consists in men, submitting the mixture to compression in the cold, and removing the solvent.

9. The process of manufacturing fuel 1 bricks, which consists in treating coal-like fuel containing bitumen and in the absence of heat with volatile solvent of bitumen, submitting the mixture to compression in the cold, and removing and recovering the 501- 20 vent.

In testimony whereof I affix my signature.

RUDOLF TORMIN. 

